Display device and backlight module

Abstract

A display device and a backlight module thereof are provided. The display device comprises a backlight module and a panel. The backlight module includes a bottom frame, a light guide, an optical film structure and a top frame. The light guide is disposed above the bottom frame. The optical film structure is disposed above the light guide. The top frame covers a periphery of the optical film structure and covers a lateral side of the bottom frame. The panel is disposed above the top frame.

What is claimed is: 
     
       1. A display device, comprising:
 a backlight module, including: 
 a bottom frame; 
 a light guide, disposed above the bottom frame; 
 an optical film structure, disposed above the light guide; and 
 a top frame, covering a periphery of the optical film structure and covering a lateral side of the bottom frame, wherein the top frame includes: 
 a first board; and 
 a second board connected to the first board and covering a lateral surface of the light guide; and 
 a panel, disposed above the top frame, wherein the first board is disposed between the optical film structure and the panel. 
 
     
     
       2. The display device according to  claim 1 , wherein the first board and the second board are substantially perpendicular to each other. 
     
     
       3. The display device according to  claim 1 , further comprising:
 a double sided adhesive film, disposed on the first board. 
 
     
     
       4. The display device according to  claim 3 , wherein a width of the double sided adhesive film is substantially equal to or larger than that of the first board or larger than that of the first board. 
     
     
       5. The display device according to  claim 1 , wherein a thickness of the first board is substantially equal to that of the second board. 
     
     
       6. The display device according to  claim 1 , wherein the bottom frame includes:
 a third board, used for carrying the light guide; and 
 a fourth board, connected to the third board and covering the lateral surface of the light guide. 
 
     
     
       7. The display device according to  claim 6 , wherein the fourth board is disposed between the lateral surface of the light guide and the second board. 
     
     
       8. The display device according to  claim 1 , wherein the top frame and the bottom frame form a receiving space, the light guide and the optical film structure are disposed inside the receiving space, and the panel is disposed outside the receiving space. 
     
     
       9. The display device according to  claim 1 , wherein a material of the top frame is metal or plastic. 
     
     
       10. A backlight module, comprising:
 a bottom frame; 
 a light guide, disposed above the bottom frame; 
 an optical film structure, disposed above the light guide; and 
 a top frame, covering a periphery of the optical film structure and covering a lateral side of the bottom frame, wherein the top frame includes: 
 a first board, disposed on the optical film structure; and 
 a second board, connected to the first board and covering a lateral surface of the light guide; 
 wherein the top frame and the bottom frame form a receiving space, the light guide and the optical film structure are disposed inside the receiving space, and a panel is disposed outside the receiving space. 
 
     
     
       11. The backlight module according to  claim 10 , wherein the first board and the second board are substantially perpendicular to each other. 
     
     
       12. The backlight module according to  claim 10 , wherein a thickness of the first board is substantially equal to that of the second board. 
     
     
       13. The backlight module according to  claim 10 , wherein the bottom frame includes:
 a third board, used for carrying the light guide; and 
 a fourth board, connected to the third board and covering the lateral surface of the light guide. 
 
     
     
       14. The backlight module according to  claim 13 , wherein the fourth board is disposed between the lateral surface of the light guide and the second board. 
     
     
       15. The backlight module according to  claim 10 , wherein a material of the top frame is metal.